What this means
The IEEE assigned the MA-L block EC74BA to Hirschmann Automation and Control GmbH. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting EC:74:BA, it is Hirschmann Automation and Control GmbH hardware.
Frequently Asked Questions
Who owns MAC prefix EC74BA?
EC74BA is registered to Hirschmann Automation and Control GmbH in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. Hirschmann Automation and Control GmbH's block covers 16,777,216 addresses.
What devices use EC74BA?
Any network device with a MAC address starting EC:74:BA was manufactured by or for Hirschmann Automation and Control GmbH.